8-Mar-17
L8937/2015/1 - Licence Amendment Application - Throughput Increase and Addition of Spodumene Ore - Environmental Risk Assessment
Environmental Risk Assessment Prepared by
Risk Title / Issue
Identify the risk
concisely
Describe the Risk
Describe the risk in further detail to
ensure the risk is clearly understood
- Environment Advisor,
Causes
List the primary
causes for the risk
Landside Operations Superintendent Port Hedland (Utah Point)
Impact
Existing Control
Measures
Control Effectiveness
Rating Basis
List the key potential
impacts of this risk
What controls
(documented/communicated) are
currently in place to manage /
mitigate the risk
How effective do you
believe the existing
controls are in
managing the Risk?
Rate as per Control
Effectiveness Criteria
Select from the
Consequence Severity
Criteria
(note - you may list several areas
- always rate on the highest
consequence)
Consequence
Likelihood
Rate as per
Consequence
Severity Criteria
Rate as per
Likelihood
Rating Criteria
Risk Rating
Residual Risk
Detail the likely maximum
automatically
probable loss that could
populates (based
eventuate
on Consequence
(note this may cover several
areas)
and Likelihood)
Throughput Increase
Increased contribution to cumulative
PM10 dust emissions in Port Hedland
from the storage and handling of iron
ore, manganese ore and chromite ore.
Storage and handling of
material with moisture
content below DEM.
Hot, dry, windy weather
conditions.
Noise
Increased contribution to cumulative
noise in Port Hedland from the storage
and handling of iron ore, manganese
ore and chromite ore.
General Minesite
operations including
road trains unloading
and braking, FEL's and
product movement
through conveyors and
stackers and reverse
alarms.
Discharge to waters
Material entering marine environment
through contaminated stormwater and
washdown water.
Infrastructure failures.
Direct discharge during
clean down.
Land infiltration to
groundwater
Contamination of groundwater from
infiltration of contaminated stormwater
and hydrocarbons spills/leaks from
mobile plant entering soils.
Failure of bentonite
layer.
Contaminants stored at
incorrect stockpile.
Mechanical failures of
mobile pants.
Dust
Public health (respiratory
and cardiovascular) with
short and long term
exposure.
Reduced life expectancy
with long term exposure.
Amenity of people.
As per Schedule 3 of L8937/2015/1.
Proposed new controls:
• Additional watering of stockyard
floors for FEL during reclaiming
operations.
• A reduction of 50% in the
shiploading tonnage rate when the
wind direction is between 247 and
267 degrees and the wind speed is
greater than 2 m/s.
Site is located away from noise
sensitive areas.
Engineering design to reduce noise
and vibrations.
Use of equipment and machinery
with lower noise emissions.
Increased sediment load
may impact receiving
As per Schedule 3 of L8937/2015/1.
water quality.
Sedimentation impacts No additional controls proposed.
to surrounding
mangroves.
Contaminated
groundwater may impact
receiving environment
(mangroves).
Bentonite layer on south-eastern half
of SY1 to prevent infiltration.
Spill response process in place for
hydrocarbon spills.
Public health (respiratory
and cardiovascular) with
short and long term
exposure.
Reduced life expectancy
with long term exposure.
As per Schedule 3 of L8937/2015/1.
Proposed new control:
• Addition of Lithium to suite of
metals monitored at HVAS monitors.
Satisfactory
Environment
Low
Possible
Moderate
Good
Environment
Low
Unlikely
Low
Excellent
Environment
Low
Unlikely
Low
Good
Environment
Low
Unlikely
Low
Satisfactory
Environment
Low
Possible
Moderate
Good
Environment
Low
Unlikely
Low
Excellent
Environment
Low
Unlikely
Low
Good
Environment
Low
Unlikely
Low
Addition of Spodumene ROM
Increased contribution to cumulative
PM10 dust emissions in Port Hedland
from the storage and handling of
Spodumene.
Storage and handling of
material with moisture
content below DEM.
Hot, dry, windy weather
conditions.
Noise
Increased contribution to cumulative
noise in Port Hedland from the storage
and handling of Spodumene.
General Minesite
operations including
road trains unloading
and braking, FEL's and
product movement
through conveyors and
stackers and reverse
alarms.
Discharge to waters
Material entering marine environment
through contaminated stormwater and Infrastructure failures.
washdown water. Contaminated
Direct discharge during
stormwater may also discharge through clean down.
stormwater infrastructure failure.
Land infiltration to
groundwater
Contamination of groundwater from
infiltration of contaminated stormwater
and hydrocarbons spills/leaks from
mobile plant entering soils.
Dust
Failure of bentonite
layer.
Contaminants stored at
incorrect stockpile.
Mechanical failures of
mobile pants.
Amenity of people.
Site is located away from noise
sensitive areas.
Engineering design to reduce noise
and vibrations.
Use of equipment and machinery
with lower noise emissions.
Increased sediment load
may impact receiving
As per Schedule 3 of L8937/2015/1.
water quality.
Sedimentation impacts No additional controls proposed.
to surrounding
mangroves.
Contaminated
groundwater may impact
receiving environment
(mangroves).
Bentonite layer on south-eastern half
of SY1 to prevent infiltration.
Spill response process in place for
hydrocarbon spills.
Maximum Probable Loss
Risk Owner
Treatment
Who within the
organisation should
manage this risk?
What additional treatments /
actions / controls are required to
manage / mitigate this risk?
Review
Date for Review
Refer to Tolerability
Criteria